Palladium complexes bearing bis-aldimine N^C^N and N^N^N pincer ligands; A study of homogeneous/heterogeneous catalyzed CO2 hydrogenation
Widespread consumption of fossil resources yielding waste CO2 has reached an all-time high and this poses an environmental threat that is contributing to global warming and climate change. Using CO2 as a C1 source may serve as an avenue to convert waste to valuable platform chemicals such as forma...
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| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | research article |
| Language: | English |
| Published: |
Elsevier
2022
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| Subjects: | |
| Online Access: | https://cris.library.msu.ac.zw//handle/11408/5289 https://doi.org/10.1016/j.ica.2022.121207 |
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| Summary: | Widespread consumption of fossil resources yielding waste CO2 has reached an all-time high and this poses an
environmental threat that is contributing to global warming and climate change. Using CO2 as a C1 source may
serve as an avenue to convert waste to valuable platform chemicals such as formates. In this contribution, we
report on the design and synthesis of new pincer Pd(II) N^C^N and N^N^N complexes. Herein, we investigate the
role of an N^C^N or N^N^N ligand backbone in Pd(II) pre-catalysts and the corresponding catalytic activity in CO2
hydrogenation. Catalytic activity and selectivity with TON (turnover number) up to 537, in a THF/H2O biphasic
(affording catalyst separation) system, was achieved. The CO2-to-CH3OH conversion sequence in the presence of
an amine using these Pd pincer catalysts is also investigated. |
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